Color of power steering gear box

I believe all power boxes were painted black. The paint was very cheap and didn't last long. This is the case with B and E bodies. That's why I assume A bodies are the same. Someone with more A body knowledge should chime in.

After degreasing the box, I would soak it in EvapoRust. That will get rid of the rust and if it was painted, you should see some traces of black paint.